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@INPROCEEDINGS{Mehmood:172149,
      author       = {Mehmood, Khalid and Berns, Anne E. and Pütz, Thomas and
                      Burauel, Peter and Vereecken, Harry and Zoriy, Myroslav and
                      Flucht, Reinhold and Opitz, Thorsten and Hofmann, Diana},
      title        = {{S}oil-plant transfer of {C}s-137 and {S}r-90 in digestate
                      amended agricultural soils- a lysimeter scale experiment.},
      school       = {Rheinische Friedrich-Wilhelms-Universität Bonn},
      reportid     = {FZJ-2014-05660},
      year         = {2014},
      abstract     = {Radiocesium and radiostrontium are among the most
                      problematic soil contaminants following nuclear fallout due
                      to their long half-lives and high fission yields. Their
                      chemical resemblance to potassium, ammonium and calcium
                      facilitates their plant uptake and thus enhances their
                      chance to reach humans through the food-chain dramatically.
                      The plant uptake of both radionuclides is affected by the
                      type of soil, the amount of organic matter and the
                      concentration of competitive ions. In the present lysimeter
                      scale experiment, soil-plant transfer of Cs-137 and Sr-90
                      was investigated in an agricultural silty soil amended with
                      digestate, a residue from a biogas plant. The liquid
                      fraction of the digestate, liquor, was used to have higher
                      nutrient competition. Digestate application was done in
                      accordance with the field practice with an application rate
                      of 34 Mg/ha and mixing it in top 5cm soil, yielding a final
                      concentration of 38 g digestate/Kg soil. The top 5 cm soil
                      of the non-amended reference soil was also submitted to the
                      same mixing procedure to account for the physical
                      disturbance of the top soil layer. Six months after the
                      amendment of the soil, the soil contamination was done with
                      water-soluble chloride salts of both radionuclides,
                      resulting in a contamination density of 66 MBq/m2 for Cs-137
                      and 18 MBq/m2 for Sr-90 in separate experiments. Our results
                      show that digestate application led to a detectable
                      difference in soil-plant transfer of the investigated
                      radionuclides, effect was more pronounced for Cs-137. A
                      clear difference was observed in plant uptake of different
                      plants. Pest plants displayed higher uptake of both
                      radionuclides compared to wheat. Furthermore, lower activity
                      values were recorded in ears compared to stems for both
                      radionuclides.},
      month         = {Apr},
      date          = {2014-04-27},
      organization  = {EGU General Assembly, Vienna
                       (Austria), 27 Apr 2014 - 2 May 2014},
      subtyp        = {Other},
      cin          = {IBG-3},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {245 - Chemicals in the Environment (POF2-245) / 255 -
                      Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF2-245 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/172149},
}